624 First battle for the faith with the Meccans at Bedr. Victory of Mohammed.
625 Battle of Ohod, and victory of the Meccans.
627 War of the Fosse. The Koreish make terms with Mohammed.
628 War against the Jews of Khaibar.
629 War against the Greek subjects in Arabia.
630 Mohammed moves against Mecca. He conquers it. War with the Hawazin. Rapid spread of Islam.
632 Death of Mohammed. He leaves the entire peninsula, with the exception of a few tribes, under one sceptre and one creed. His father-in-law, Abu Bekr, is chosen caliph, or representative. An army under Khalid sets out against the Byzantine Empire. Abu Bekr reduces a revolt in Nejd and Yemen, and defends Medina.
633 Khalid, on the lower Euphrates, is called to Syria.
634 Khalid captures Bosrah and overruns the Hauran. Death of Abu Bekr. Omar succeeds.